Just a suggestion, A Lunar with a high enough Solar Bond might not need any other incentive to want to crush creation... They may just be compelled to assist their Mate.
I would be very interested in trying a game like this. There are all kinds of cool tech and toys available in the Codex that I would like to experiment with. And the Sorceries/Necromancies offer all kinds of ways update and play with MagiTech.